This inverter circuit, which consists of a Hartley power oscillator, was found in a 1993 documentation. The transistor must be equipped with a heat sink and the coils wound in an E30 / 07 core have the following characteristics: The primary has 32 wire turns 28 until the outlet. Then 10 more turns of wire 25 are wound. The secondary has 10 turns of wire 28 and then another 210 turns of the same wire until the next outlet and then 10 more turns.
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